Unpacking the Equipment
After the equipment has been unpacked, unless specifically requested by the
customer, the following equipment items should be found :
• transmitter with 10m of cable (standard length)
• receiver with 10m of cable (standard length)
• signal processor
• power supply
• site mounting flange (2 off)
• air purge (2 off)
Siting the Equipment
The equipment is designed for mounting on boiler ducting or stacks in position
open to the weather. It is fully sealed to IP65 and requires no further enclosures
or protection. The specific location of the instrument will depend upon the
application and user requirements, but the following points should be
considered when choosing a site :
• the site must be accessible at both sides of the duct for servicing
the transmitter and the receiver.
• the site should be as free as possible from extremes of
temperatures and vibration. Permissible ambient temperature
ranges are -20
o
C to 80
0
C for the transmitter and receiver and -
20
o
C to 70
o
C for the signal processor.
! At low temperatures, condensation might occur on the lens of
the instrument causing an incorrect (high) opacity reading.
• there must be an uninterrupted sight path between the transmitter
and the receiver.
• the signal processor and power supply units are normally mounted
close to the transmitter and receiver, both of which are supplied
with 10m of cable as standard.
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